单词 keel-boat 释义 keel-boat|kilbt|[f. keel n.1 and n.2]†a. ? A small keel: cf. keel n.2 Obs. b. A large flat boat used on American rivers. U.S. c. A yacht having a keel instead of a centre-board.a.1695Lond. Gaz. No. 2073/1 An Act for the better Admeas...